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Finding the Fourth Proportional to 251,646.68, 347,279.46 and 136,932.32

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Solution

The fourth proportional to 251,646.68, 347,279.46 and 136,932.32 is: 188,970.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,646.68 : 347,279.46 = 136,932.32 : x
  2. Step 2: Convert to fraction form
    251,646.68/347,279.46 = 136,932.32/x
  3. Step 3: Cross multiply
    251,646.68x = 347,279.46 × 136,932.32
  4. Step 4: Simplify right side
    251,646.68x = 47,553,782,146.15
  5. Step 5: Solve for x
    x = 47,553,782,146.15/251,646.68
  6. Step 6: Final answer
    x = 188,970.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.